easy way of identifying 28 vs 30 spline 10bolt front without pulling parts?

Discussion in 'The Garage' started by jjlaughner, Apr 27, 2004.

  1. jjlaughner

    jjlaughner 3/4 ton status

    Joined:
    Jan 12, 2001
    Posts:
    7,406
    Likes Received:
    0
    Location:
    Indiana
    Is there a way to Idenetify them easily? /forums/images/graemlins/ears.gif
     
  2. daleearnhardt01

    daleearnhardt01 1/2 ton status

    Joined:
    Aug 29, 2002
    Posts:
    3,223
    Likes Received:
    2
    Location:
    Richmond, VA
    Im sure there is a number cast on the axle somewheres so you can check date of manufacture? I mean they were only used from 88-91 AFAIK.
     
  3. zcarczar

    zcarczar 1/2 ton status

    Joined:
    Feb 10, 2002
    Posts:
    2,495
    Likes Received:
    0
    Location:
    Apple Valley California
    The easiest and only way I know is to pull an axle and count the splines.
     
  4. big83chevy4x4

    big83chevy4x4 3/4 ton status

    Joined:
    Mar 22, 2002
    Posts:
    6,587
    Likes Received:
    0
    Location:
    Sheridan, Michigan
    it would be easier to pull the cover and pull the axle spider gears and count the splines.
     
  5. big jimmy 91

    big jimmy 91 1/2 ton status

    Joined:
    Feb 21, 2004
    Posts:
    639
    Likes Received:
    0
    Location:
    Northwestern Ontario Canada
    Did the number of splines change over the years ? (older vrs. newer)
    I am just curious , wouldn't want to buy parts if they are not a direct swap lol. /forums/images/graemlins/doah.gif
     
  6. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    Yes, they changed in 88 I do believe to 30 spline, prior to that they were 28.
     
  7. ChevyCaGal

    ChevyCaGal 3/4 ton status

    Joined:
    Dec 16, 2000
    Posts:
    8,158
    Likes Received:
    0
    Location:
    Sacramento, CA USA
    [ QUOTE ]
    Did the number of splines change over the years ? (older vrs. newer)
    I am just curious , wouldn't want to buy parts if they are not a direct swap lol. /forums/images/graemlins/doah.gif

    [/ QUOTE ]

    They changed in 89 AFIK on Blazers.

    (I just double checked the specs page and that is what it says)
     

Share This Page